Decoder. plain-English AI glossary

Word embedding

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A word turned into a list of numbers so that similar words land near each other in space.

Think of it like

Like giving every word a home address in a city where synonyms are neighbors and opposites live across town.

Example

A classic model places “king” and “queen” close together, and the gap from “man” to “woman” mirrors the gap from “king” to “queen.”

How it actually works

Early methods like word2vec and GloVe gave each word one fixed vector learned from co-occurrence. That was a breakthrough, but the flaw is context-blindness: “bank” gets a single vector whether it’s a river or a vault. Transformers replaced them with context-dependent representations, which is why static word embeddings are fading.

For product teams

Foundational history — mostly superseded by contextual models, but the intuition still explains embeddings.

For engineers

Static, context-independent vectors per token learned from co-occurrence statistics; a precursor to contextual representations.

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